Top positive review

5.0 out of 5 starsA very useful accessory for CTEK chargers. Great for hard to access batteries. Also gives visual indication of battery state

ByGadgeReviewon 11 November 2014

I bought two of these along with a CTEK charger for use on cars that do not have daily use.

My cars have difficult to access batteries, so this provides a permanent wiring solution that meets my needs. The added bonus is that the comfort indicator gives a visual indication of your car battery charge.

The 'traffic light' system shows FLASHING GREEN for battery is okay, and doesn't need charging (however it would still be okay to attach the CTEK charger, as it will maintain the charge on an okay battery).

YELLOW means, attach your CTEK charger, as the battery requires a charge, and harm will occur in the long term if left in this partially discharged state.

RED means that the battery is discharged to a state where your battery is in danger of not starting the car and may not hold a charge if not charged immediately.

The comfort indicator also has a handy cap to cover the contacts on the end of the cable (where the charger attaches).

Top critical review

3.0 out of 5 starsIt provides a snapshot of the system voltage level and works best when the battery has reached a rest level (this ...

BySam Scanneron 5 April 2015

This is the third one I have purchased.All appear to suffer from a similar idiosyncracy.Despite using them with two brand new batteries on two different vehicles,the green 'full' indicators only stay on for a short time before reverting to amber or even red. The batteries are recent (few months) fully charged, branded and top spec so there isn't a problem with them.In fact the original batteries were replaced on the basis of their age and the Comfort Indications . The information provided by the CTEK website follows - so it would seem that the act of opening the boot with consequent operation of the interior light could be sufficient to change the indication! I have a COMFORT INDICATOR connected to the battery in my car. The red lamp flashes even after I've fully charged the battery with my MULTI XS 3600/ MXS 3.6/Zafir 45/M45. Should it do this? I thought the COMFORT INDICATOR would be green when the battery is fully charged? The CTEK COMFORT INDICATOR is exactly what the name says – an indicator. It provides a snapshot of the system voltage level and works best when the battery has reached a rest level (this can take up to a few hours after the battery was used). As soon as you open a car door or turn on the ignition, the COMFORT INDICATOR will show the actual status, which means that the voltage level will be temporarily indicated as yellow or even red. This is nothing to worry about. The COMFORT INDICATOR is working correctly. To make things easier, you can position the COMFORT INDICATOR where you can see it without having to unlock or use any voltage in the car. I have a COMFORT INDICATOR connected to the battery all the time. Is there any risk of the battery discharging? How do I interpret the colour markings on my COMFORT INDICATOR? GREEN: battery voltage is over 12.65 = battery is fully charged and does not require charging YELLOW: battery voltage is between 12.65 and 12.4V = battery is well charged. Recharge if you have time and opportunity RED: battery voltage is below 12.4V = time for charging to prevent battery damage.I like the CTEK system - providing reliable charging - but not convinced about the value of this particular accessory since being attached to the battery it is unlikely that it can be viewed without opening either the boot or the bonnet!

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This is the third one I have purchased.All appear to suffer from a similar idiosyncracy.Despite using them with two brand new batteries on two different vehicles,the green 'full' indicators only stay on for a short time before reverting to amber or even red. The batteries are recent (few months) fully charged, branded and top spec so there isn't a problem with them.In fact the original batteries were replaced on the basis of their age and the Comfort Indications . The information provided by the CTEK website follows - so it would seem that the act of opening the boot with consequent operation of the interior light could be sufficient to change the indication! I have a COMFORT INDICATOR connected to the battery in my car. The red lamp flashes even after I've fully charged the battery with my MULTI XS 3600/ MXS 3.6/Zafir 45/M45. Should it do this? I thought the COMFORT INDICATOR would be green when the battery is fully charged? The CTEK COMFORT INDICATOR is exactly what the name says – an indicator. It provides a snapshot of the system voltage level and works best when the battery has reached a rest level (this can take up to a few hours after the battery was used). As soon as you open a car door or turn on the ignition, the COMFORT INDICATOR will show the actual status, which means that the voltage level will be temporarily indicated as yellow or even red. This is nothing to worry about. The COMFORT INDICATOR is working correctly. To make things easier, you can position the COMFORT INDICATOR where you can see it without having to unlock or use any voltage in the car. I have a COMFORT INDICATOR connected to the battery all the time. Is there any risk of the battery discharging? How do I interpret the colour markings on my COMFORT INDICATOR? GREEN: battery voltage is over 12.65 = battery is fully charged and does not require charging YELLOW: battery voltage is between 12.65 and 12.4V = battery is well charged. Recharge if you have time and opportunity RED: battery voltage is below 12.4V = time for charging to prevent battery damage.I like the CTEK system - providing reliable charging - but not convinced about the value of this particular accessory since being attached to the battery it is unlikely that it can be viewed without opening either the boot or the bonnet!

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I bought two of these along with a CTEK charger for use on cars that do not have daily use.

My cars have difficult to access batteries, so this provides a permanent wiring solution that meets my needs. The added bonus is that the comfort indicator gives a visual indication of your car battery charge.

The 'traffic light' system shows FLASHING GREEN for battery is okay, and doesn't need charging (however it would still be okay to attach the CTEK charger, as it will maintain the charge on an okay battery).

YELLOW means, attach your CTEK charger, as the battery requires a charge, and harm will occur in the long term if left in this partially discharged state.

RED means that the battery is discharged to a state where your battery is in danger of not starting the car and may not hold a charge if not charged immediately.

The comfort indicator also has a handy cap to cover the contacts on the end of the cable (where the charger attaches).